International Scientific Journal


IR thermography and gamma-ray method were used to experimentally study motion of thermal and moistening fronts in a porous material under capillary moistening. It is shown that at capillary moistening propagation of the moistening front may be accompanied by the thermal front due to sorption processes. On the basis of obtained experimental data the relation between propagation of two fronts has been established.
PAPER REVISED: 2013-04-23
PAPER ACCEPTED: 2013-05-07
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THERMAL SCIENCE YEAR 2013, VOLUME 17, ISSUE Issue 4, PAGES [1071 - 1078]
  1. Restuccia, G., et al, Experimental investigation of a solid adsorption chiller based on a heat exchanger coated with hydrophobic zeolite, Appl. Therm. Eng., 25 (2005), 10, pp. 1419-1428
  2. Aristov, Yu.I., et al, A family of new working materials for solid sorption air conditioning systems, Appl. Therm. Eng., 22, (2002), 2 pp. 191-204
  3. van der Zanden, A.J.J., Schoenmakers, A.M.E., The influence of sorption isotherms on the drying of porous materials, Int. J. Heat Mass Trans., 39, (1996), 11, pp. 2319-2327
  4. Lu, T., Shen, S.Q., Numerical and experimental investigation of paper drying: Heat and mass transfer with phase change in porous media, Appl. Therm. Eng., 27, (2007), 8-9, 1248-1258
  5. Tomimura, T., et al, Experimental study on multi-layered type of gas-to-gas heat exchanger using porous media, Int. J. Heat Mass Tran., 47 (2004), 21, pp. 4615-4623
  6. Pavel, B.I., Mohamad, A.A., An experimental and numerical study on heat transfer enhancement for gas heat exchangers fitted with porous media, Int. J. Heat and Mass Tran. 47, (2004), 23, pp. 4939-4952
  7. Lim, T.K., et al, Single-phase heat transfer in the high temperature multiple porous insulation, Appl. Therm. Eng., 27, (2007), 8-9, pp. 1352-1362
  8. Ozel, M., Thermal performance and optimum insulation thickness of building walls with different structure materials, Applied Thermal Engineering., 31, (2011), 17-18, pp. 3854-3863
  9. Pons, M., Poyelle, F., Adsorptive machines with advanced cycles for heat pumping or cooling applications, Int. J. Refrigeration., 22, (1999), pp. 27-37
  10. Meunier, F., Solid sorption heat powered cycles for cooling and heat pumping applications, Appl. Therm. Eng., 18, (1998), 9-10, pp. 715-729
  11. Udell, K.S., Heat transfer in porous media considering phase change and capillarity - the heat pipe effect, Int. J. Heat Mass Trans., 28, (1985), 2, 485-495
  12. Koptyug, I.V., et al, NMR imaging of mass transport and related phenomena in porous catalysts and sorbents, Magnetic Reson. Imag., 19, (2001), 3-4, pp. 531-534
  13. Reis Jr., N.C, et al, Investigation of the evaporation of embedded liquid droplets from porous surfaces using magnetic resonance imaging, Int. J. Heat Mass Tran., 46, (2003), 7, pp. 1279-1292
  14. van der Heijden, G.H.A., et al, One-dimensional scanning of moisture in heated porous building materials with NMR, J. Magnetic Resonance., 208, (2011), pp. 235-242
  15. Pel, L., et al, Determination of moisture diffusivity in porous media using scanning neutron radiography, Int. J. Heat Mass Tran., 36, (1993), 5, pp. 1261 - 1267
  16. Zhang, P., et al, Neutron radiography, a powerful method to determine time-dependent moisture distributions in concrete, Nuclear Eng. and Design., 241, (2011), 12, pp. 4758-4766
  17. Nizovtsev, M.I., et al, Determination of moisture diffusivity in porous building materials using gamma- method, Int. J. Heat Mass Tran., 51, (2008), 17-18, pp. 4161-4167
  18. Vainer, B.G., Focal plane array based infrared thermography in fine physical experiment, J. Phys. D: Appl. Phys., 41, (2008), pp. 65-77
  19. Herchang, Ay, et al, Local heat transfer measurements of plate finned-tube heat exchangers by infrared thermography, Int. J. Heat and Mass Tran., 45, (2002), 20, pp. 4069-4078
  20. Yurjev, G.S., et al, Structure autoclaved porous concrete SIBIT// Proc. Conference "New constructional materials", Moscow, (2000), pp. 77-78
  21. Fenelonov, V.B., Introduction to the Physical Chemistry of Supramolecular-Structure Formation in Adsorbents and Catalysts, Russian Acad. Sci., Siber. Branch, 2002
  22. Nizovtsev, M.I., et al, Effect of material humidity on heat and moisture-transfer processes in gas-concrete, in: J.T. Sentowski (Eds), Concrete materials: properties, performance and applications, Nova Science Publishers, New York, (2009), pp. 397-429
  23. Sterlyagov, A.N., Conjugate thermo and moisture transfer in enclosure structures from the gas - concrete: PhD-dissertation, Novosibirsk, Russia, 2007
  24. Boreskov, G.K., et al, Scientific Basis of Catalyst Preparation, Studies in Surface Science and Catalysis, 1, (1976), pp. 223-250
  25. Nizovtsev, M.I., et al, Experimental research thermal effects at capillary moistening of porous materials, Thermal Proceses In Technics (in Russian), 3, (2011), 3, pp. 127-133

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